Contact us
Choose a category below so we can get back to you as quickly as possible.
a*6/7=b*6/5=c 令原式=1,則a=7/6,b=5/6,c=1 ∴b<c<a
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.